简介:摘要:跳仓法是将建筑物地基或大面积砼平面机构划分成若干个区域,按照“分块规划、隔块施工、分层浇筑、整体成型”的原则施工,其模式和跳棋一样,即隔一段浇一段。相邻两段间隔时间不少于7天,它具有方便施工、提高结构整体性、防水性以及缩短施工工期,同时避免了二次浇筑前清理、凿毛、独立支撑架体等相关工序,降低了成本。
简介:The‘reallyexistingglobalization',whichisusedtorefertothetypeofglobalizationweseetoday,isviewedbytheauthortoposegreatdangerstolifeincitiesbyincreasingpovertyandgapbetweentherichandthepoor,handicappingdevelopingcitiesthroughspecializationoffunctions,advocatingmarketizationofhousingandprivatizationofpublicserviceswhichareharmfultotheurbanpoor,prioritizingprofitinsteadofqualityinenvironmentalmanagementandmagnifyingthedangerofterrorismtocities.However,thisisnottheonlyformofglobalizationpossible.
简介:摘要:简要讲述了深挖路堑段CTRSⅢ型无砟轨道施工,对其施工组织、施工方法、质量提升、进度优化、资源配置等作出了论述,以期为今后同类施工提供参考。
简介:ThecholeraoutbreakinEastAfricaandPerumadeKenya,Tanzania,UgandaandPerusufferheavilynotonlyfromlostlives,butalsofromlostexportsandadropintourism.However,lessonsfromPeruandEastAfricaandtheyearsofstrugglebytheUnitedNationsanditspartners,havefinallystirredtheinternationalcommunitytoaction.WaterandsanitationemergedasakeydevelopmentissueattheWorldSummitonSustainableDevelopmentinJohannesburg,SouthAfricalastyear.WorldHabitatDaythisyearfocusedonWaterandSanitationforCities.Thiscouldbeadefiningmomentfornationalplanner,policy-makersandcityauthoritiestoreflectonthechallengeaheadandtodedicatethemselvesanewtoataskthatastatementbyworldleadersinJohannesburgcalled“humanity'sbestinvestmenttoachievedevelopmentandsustainability”.